One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,8)(3,4,5,7)(17,18)(19,24)(20,25)(21,23)(22,26)(27,31)(28,32)(29,30)(1,3,6,5)(2,7,8,4)(10,13)(14,16)(17,19,23,27)(18,24,21,31)(20,28,30,26)(22,25,32,29)(2,8)(4,7)(9,10,12,13)(11,14,15,16)(18,21)(19,27)(25,29)(26,28)(2,8)(3,5)(11,15)(14,16)(17,20,23,30)(18,25,21,29)(19,26,27,28)(22,31,32,24)(1,4,6,7)(2,3,8,5)(9,10)(11,14)(12,13)(15,16)(17,21,23,18)(19,24,27,31)(20,29,30,25)(22,28,32,26)(1,5,6,3)(2,7,8,4)(9,11)(10,14)(12,15)(13,16)(17,22)(18,26)(19,25)(20,24)(21,28)(23,32)(27,29)(30,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.